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Massachusetts butterflies move north as climate warms http://apocadocs.com/s.pl?1345418854
... "Over the past 19 years, a warming climate has been reshaping Massachusetts butterfly communities." Subtropical and warm-climate species such as the giant swallowtail and zabulon skipper--many of which were rare or absent in Massachusetts as recently as the late 1980s--show the sharpest increases in abundance. At the same time, more than three quarters of northerly species--species with a range centered north of Boston--are now declining in Massachusetts, many of them rapidly. Most impacted are the species that overwinter as eggs or small larvae: these overwintering stages may be much more sensitive to drought or lack of snow cover.
The study creates new questions for managing threatened species. "For most butterfly species, climate change seems to be a stronger change-agent than habitat loss. Protecting habitat remains a key management strategy, and that may help some butterfly species. However, for many others, habitat protection will not mitigate the impacts of warming," says Breed.
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[Read more stories about:
climate impacts, migration changes, koyaanisqatsi]
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'Doc Michael says:
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Those butterflies are flapping their wings farther north, so they'll blow cold air to where it's needed!
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